Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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~ ACKGROUND OF THE INVENTION
This invention relates ~o a heat generating apparatus
by use of multistage rotary means, in which a plurality
of rotary means are disposed in a multistage manner in a
tubular casing, thereby a heat generating effect can be
attained on each stage level.
The inventor has so far proposed a basic invention
entitled "Heating process and its apparatus in reducing
air pressure within a chamber at a balanced level" (as
disclosed in Canadian Patent 1,156,037 which issued
November 1, 1983.
The aforsaid patent comprises rotary means for
reducing or pressurizing air pressurewithin the chamber
and a suction opening in which the rotary means is
disposed, whereby the air pressure within the chamber is
reduced or pressurized by continuous rotation of the
rotary means, and a difference between the reduced
or pressurized air pressure within the chamber and a
normal air pressure thereoutside is maintained at a
balanced level. Under such circumstances, air
friction heat is generated in a gap between the suction
opening and the rotary means by continuous rotation thereof,
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and can be used for drying or heating purposes.
That is to say, means for suctioning and discharging
air within the chamber as well as means for generating air
friction heat is formed by the rotary means having the
suction opening, so that the drying or heating effect is
greatly dependent upon whether or not the operational
efficiency of the rotary means is superior. From this
point of view, this invention has been accomplished.
BRIEF SUMMARY OF THE INVENTION
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It is an object of thls invention to provide a heat
generating apparatus by use of multistage rotary means
having the excellent air suction and discharge effect as
well as the excellent heat generating effect, wherein two
or more rotary means are disposed in a multistage manner
in a tubular casing.
It is another object of this invention to provide
a heat generating apparatus by use of multistage rotary
means, in which an air friction heat area is formed in
a slight gap of a rotation area of a plurality of rotary
vanes of the rotary means, thereby a heat generating effect
is attained on each stage level of the rotary means.
It is another object of this invention to provide a
heat generating apparatus by use of multistage rotary means
which can brlng a preferred air suction and discharge effect
by modifying optionally each vane's size, its number, its
inclination and a distance between adjacent vanes.
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It is another object of this invention to provide
a heat generating apparatus by use of multistage rotary
means, in which a plurality of air suction inlets are
disposed in respective tubular casings on each stage,
thereby heated air is taken out on each stage level of
the rotary means.
It is a further object of this invention to provide
a heat generating apparatus by use of multistage rotary
means, in which each rotary means is one separate unit,
thereby a plurality of such separate units are connected
and fixed with each other.
These and other objects, features and advantages of
this invention will become more apparent upon a reading
of the following detailed specification and drawings.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig. 1 is a section view of an example of a heat
generating apparatus by use of multistage rotary means
according to this invention.
Fig. 2 is a section view of a single sturcture (one
unit) of the heat generating apparatus, which comprises
a rotary means and a tubular casing.
Fig. 3 is a section view of an example in which a
plurality of units are perpendiculaxly connected with each
other.
Fig. 4 is a section view of another example of this
invention.
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102~
Fig. 5 is a detailed longitudinal section view of an
example of a single structure comprising a rotary means
and a tubular casing.
Fig. 6 is a section view taken on line VI - VI of
5 Fig. 5.
PREFERRED EXAMPLES OF THE INVENTION
Preferred examples of this invention will now be described
with reference to the accompanying drawings.
Numeral 1 denotes a rotary means disposed within a
tubular casing 2, and the rotary means 1 comprises an elec-
tric motor la and a plurality of rotary vanes lb. Numeral
3 denotes an air friction heat generating area formed in
a rotation area R of the rotary vanes lb, in which the air
friction heat is generated very effectively. That is, it
is produced in a slight gap g formed between the tubular
casing 2 and the rotary vanes lb.
Fig. 1 shows a basic example of this invention, in
which three rotary means 1 are disposed perpendicularly
in the tubular casing 2 of a three-stage construction.
Thus, a heat generating structure is also of three stages,
in which each air friction heat generating area 3 having
the gap y is formed in the rotation area R of the rotary
vanes lb of each rotary means 1.
According to the three-stage heat generating structure
of this invention, the rotary vanes lb of each rotary means
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1 have the same size, same number, same inclination and
same distance between adjacent vanes lb, but it is optional
to modify the size, number, inclination and distance of the
adjacent rotary vanes lb as necessity arises. More preferably,
the output capacity of the first stage motor (the uppermost
one in Fig. 1) is the highest, and that of the second stage
and third stage motors is lower than that of the first stage
one. However, this invention is not limited to such a
gradual reduction of the motor's output capacity.
According to this example, the rotary vanes are directly
connected to the motor la, but their speed can be changed by
way of a speed change gear.
Further, it is optional to dispose a head of the rotary
means 1 with right angle relative to a longitudinal axis of
the tubular casing 2. In that case, the shape o~ the tubular
casing 2 is of course modified.
Numeral 4 denotes an air suction inlet disposed in a
front end of the tubular casing 2, while numeral 5 denotes
an air discharge outlet disposed in a rear end thereof.
Numeral 6 denotes a valve disposed in the air suction inlet
4. Preferably, the caliber of the suction inlet 4 and/or
the discharge outlet 5 is designed smaller so that the air
flow quantity may become smaller, thereby it becomes easy
to reduce or pressurize the air pressure within the tubular
casing at a constantly balanced level.
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A function of the above first example will now be
described.
When each motor la is energized, its rotary vanes lb
are rotated in an arrow dixection as indicated in Fig. 1.
When the valve 6 is opened, the air within the tubular
casing 2 is discharged thereoutside from the air outlet 5
by way of the first, second and third stage rotary means.
Since the rotary means 1 is rotated with a high speed
in the air firction heat generating area 3 formed by the
gap g within the rotation area R, the air retaining in the
gap g increases the temperature to a higher degree due to
an intense air friction effect, thereby a high temperature
air is produced. In the meanwhile, since the air pressure
within the tubular casing 2 is maintained at a reduced
balanced level due to the air suction and discharge function,
the heat generating effect is very high. In other words,
the air pressure reduction is maintained at a continuously
balanced level, namely in a dynamic state, in the condition
that the air is constantly suctioned (the valve 6 is opened)
and discharged. And, as the stage level of the rotary means
1 is lower, the heat generating effect becomes higher.
On the other hand, the condition that the valve 6 is
sealed will be described. Under such circumstances, when
the motor la is actuated and the rotary vanes lb are rotated,
the air within the tubular casing 2 is discharged thereout-
side and the air pressure therewithin is reduced gradually.
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After a short lapse of time, a difference between a reduced
air pressure within the casing 2 and a normal air pressure
thereoutside is maintained at a balanced level. After the
air within the casing 2 has reached a high temperature by
stimulating fully the air friction heat generating effect,
it is possible to maintain the air pressure within the
casing 2 at a reduced balanced level even if the valve is
opened and further to discharge the high temperature air
continuously from the air outlet 5.
Further, the temperature distribution of the air
friction heat becomes higher as the stage level of the
friction heat generating area 3 becomes lower.
Accordingly, when the tubular casing 2 is closed for
the heat generating purpose, it can be used as a heat
source. (The closed casing is not illustrated.) Further,
when such a heat energy is discharged as described in Fig.
1, it may be used for various purposes such as room heating,
drying, etc.
A second example of this invention will be described
with reference to Figs. 2 and 3. It shows a utility example
of a single structure A. As shown in Fig. 2/ the single
structure A is such that one unit of the rotary means is
disposed in the casing 2a and provided with an air introducing
area 7 and an air discharging area 8. The casing 2a has
connecting members 9 at two areas 7 and 8. Thus, if three
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units of the structure A are connected with each other by
fixing adjacent connecting member 9 by means of screws 9a
or the like, a heat generating apparatus by use of multistage
rotary means can be obtained as shown in Fig. 3. Since the
structure of each rotary means 1 and of each casing 2a is
the same as described previously, its description will be
omitted. On the uppermost casing 2a is fixedly mounted an
air introducing member 10 having the air suction inlet 4,
while on the lowermost casing is fixedly mounted an air
discharging member 11 having the air discharge outlet 5.
Accordingly, when all the rotary means 1 are actuated, the
air friction heat is generated like the first example, thus
enabling various industrial utilities.
Moreover, it is possible to produce a sufficient heat
energy by making use of only one unit type structure A
tas shown in Fig. 2) which is the simplest construction,
provided that both the air introducing member 10 and the
air discharging member 11 are together fixed with the
structure A.
A fourth example of this invention will be described
with regard to Fig. 4. As shown in Fig. 4, the tubular
casing 1 is of a double construction, wherein a heat accumu-
lating material 12 is disposed between the tubular casing 1
and a box-type casing in order to accumulate the heat energy
generated in each friction heat generating area 3 and then
produce a high temperature heat efficiently. The construction
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of the rotary means 1, rotation area R, gap g and air
friction heat generating area 3 is the same as described
previously, so that its description will be omitted.
In this example, the air discharge outlet 5 is disposed
in a lower part of the casing 2, while two air discharge
outlets 13, 14 are disposed separately between adjacent
rotary means. Those two air discharge outlets 13, 14 are
connected to suction means 16 of a rotary pump or the like
by way of the valves 15, thereby the heat energy can be
taken out on each stage level. Since the heat energy
generated in the tubular casing 2 has a different tempera-
ture on each stage level, it can be utilized for respective
purposes.
According to one aspect of this example, the valve 6
in the suction inlet 4 may be removed, and disposed in the
discharge outlet 5. In this case (not illustrated), the
air pressure within the tubular casing 2 can be pressurized
at a balanced level while controlling the valve 6 disposed
in the discharge outlet 5. And, the heat energy obtained
by way of the two air discharge outlets 13, 14 can be
supplied to a preferred place without installing the suction
means 16.
Fig. 5 shows a detailed section view of a single
structure A in the aforesaid examples. The single structure
A in Fig. 5 comprises means B for cooling the motor la which
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consists of means for shielding bad effects due to the heat
of the motor la and means for introducing outer cooling air,
thereby the motor la can be actuated in a constantly normal
manner despite occurrence of a high temperature air.
Numeral 17 denotes a cover body for covering and
shielding exclusively the motor la and numeral 18 denotes
a space 18 in which a pipe l9 for suctioning the cooling
air is provided. One end of the pipe l9 is directed to the
space 18 and another end thereof is directed outside the
tubular casing 2a. Numeral 20 denotes a short pipe for
discharging the heated air, one end of which is directed to
the space 18 and another end of which is directed inside the
tubular casing 2a.
Numeral 21 denotes a support for supporting the motor
la and fixing it with the tubular casing 2a.
Further, it is possible to dispose a sirocco fan 23 as
shown by a dot-and-dash line in order to discharge the over
heat of the motor la. A center of the sirocco fan 23 is
connected to a shaf~ of the motor la. Thus, the heated air
of the motor la can be prevented easily by rotating the
sirocco fan 23. Further, the short pipe 20 can be extended
through the tubular casing 2a as shown by a dot-and-dash
line. The cooling air to be introduced into the space 18
may be replaced with a Freon gas or other cooling medium.
Accordingly, owing to the cooling means B, the motor
la in the multistage rotary means is always placed in a
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cooling condition during its actuation, prevented from
overheating and actuated stably for a long time.
According to one aspect of this invention, each one
of a plurality of rotary means has a driving source (such
as an electric motor) and rotary vanes, and an air friction
heat is generated in a gap of a rotation area of the rotary
vanes while reducing or pressurizing the air pressure with-
in the chamber at a continuously balanced level. Further,
the thus heated air can be taken out on the stage level of
the rotary means~ Still further, a desired heat energy can
be produced by connecting a preferred number of a single
structure (A~ with each other. It should be noted that the
heat energy produced by this invention is very clean and
can be utilized for various purposes.
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